Flashing, pipe boots, vent penetrations, and valleys are common places where Marietta roofs leak

https://landenuenb891.opalvector.com/posts/flashing-pipe-boots-and-valleys-common-leak-points-on-marietta-roofs-2

Flashing, pipe boots, vent penetrations, and valleys are common places where Marietta roofs leak, especially during wind-driven rain, making proper sealing and inspection important after storms.